From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21D562102 for ; Mon, 28 Nov 2022 08:47:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF97EC433D6; Mon, 28 Nov 2022 08:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669625223; bh=gYWX5ysKrwyflgI/4gaEBKsUkaxFwF6VSMC4FPBpAGw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hYpLL8xr8IDqcBIUcuudj3mpGbABu5hz8vvb0SoC4ntAurdI6p0xWIRV/IyjG5Uz2 mppErPhfcrnyNIm9pVA+qqx5kRUibAeg9EVQyYpJPeY0CfXJG3qucl4E546zVHo/V0 95iqEDYkDG9JSU5KairwY3CRz7WV8qG8TtgvPmsvnuMWLwo24fbdzsNpPd6oFxbxRJ MCkg+zNHrjJ1K6Z4ZN+F+qHyxDePmyqoiKYkTHqPBtmgPPogr9WpZ1ms2DF/Umbv6/ f1L+NfD/rdLDsN0KNm/Vhgp1JNXdSG4msGTEHgSrazNLx84+Rn7LTZ6VXqWTnL4lnM xPVkJuwmv6KMw== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1ozZn3-008xsr-H0; Mon, 28 Nov 2022 08:47:01 +0000 Date: Mon, 28 Nov 2022 08:47:00 +0000 Message-ID: <86mt8bmpob.wl-maz@kernel.org> From: Marc Zyngier To: Mark Brown Cc: Catalin Marinas , Will Deacon , Zhang Lei , James Morse , Alexandru Elisei , Andre Przywara , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v5 0/8] arm64/sve: Clean up KVM integration and optimise syscalls In-Reply-To: <20221115094640.112848-1-broonie@kernel.org> References: <20221115094640.112848-1-broonie@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: broonie@kernel.org, catalin.marinas@arm.com, will@kernel.org, zhang.lei@jp.fujitsu.com, james.morse@arm.com, alexandru.elisei@arm.com, andre.przywara@arm.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Tue, 15 Nov 2022 09:46:32 +0000, Mark Brown wrote: > > This patch series attempts to clarify the tracking of which set of > floating point registers we save on systems supporting SVE, particularly > with reference to KVM, and then uses the results of this clarification > to improve the performance of simple syscalls where we return directly > to userspace in cases where userspace is using SVE. Reviewed-by: Marc Zyngier I expect this to go via the arm64 tree, please shout if that's not the case. M. -- Without deviation from the norm, progress is not possible. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CF1F2C4167D for ; Mon, 28 Nov 2022 08:48:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=jnD68noIPwk++tSgUM1p54VvG3fZaqEmKDbNjrsVfQI=; b=MWvgKV1b5+WKSj x6Wrwb8J1oDtXgnDP8dPr2V2ZRj9QLCNIzyDITGPaV0hG64cita8G43tVuBLkhDIG6J0RE4xMDeF/ D7gZLjnIoRoClduLzLmr2GbY3tvZ/xWsVAhREav+pSI6/SnXVHu+yB5YJAQ4YtcAx44v6lasWLiYR Cbcsp+w/L27B0pqHPeVQWogjVIf90Oy05paf26BVU0/2Ys3ghYwiQDjEe4a05vw2OWKXOZi2YMdS9 SjMyRmoLsiSd6ear47qe7LttjEYjEvVsfpr9DX1eNl3VaOLq7RxVbnNYVABQ5gJXJUH+7E+arxlQV Y6fItA7hAUj3DZ5BOxDQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ozZnC-000MkC-6Y; Mon, 28 Nov 2022 08:47:10 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ozZn8-000MiR-HZ for linux-arm-kernel@lists.infradead.org; Mon, 28 Nov 2022 08:47:07 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 04D32B80C94; Mon, 28 Nov 2022 08:47:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF97EC433D6; Mon, 28 Nov 2022 08:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669625223; bh=gYWX5ysKrwyflgI/4gaEBKsUkaxFwF6VSMC4FPBpAGw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hYpLL8xr8IDqcBIUcuudj3mpGbABu5hz8vvb0SoC4ntAurdI6p0xWIRV/IyjG5Uz2 mppErPhfcrnyNIm9pVA+qqx5kRUibAeg9EVQyYpJPeY0CfXJG3qucl4E546zVHo/V0 95iqEDYkDG9JSU5KairwY3CRz7WV8qG8TtgvPmsvnuMWLwo24fbdzsNpPd6oFxbxRJ MCkg+zNHrjJ1K6Z4ZN+F+qHyxDePmyqoiKYkTHqPBtmgPPogr9WpZ1ms2DF/Umbv6/ f1L+NfD/rdLDsN0KNm/Vhgp1JNXdSG4msGTEHgSrazNLx84+Rn7LTZ6VXqWTnL4lnM xPVkJuwmv6KMw== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1ozZn3-008xsr-H0; Mon, 28 Nov 2022 08:47:01 +0000 Date: Mon, 28 Nov 2022 08:47:00 +0000 Message-ID: <86mt8bmpob.wl-maz@kernel.org> From: Marc Zyngier To: Mark Brown Cc: Catalin Marinas , Will Deacon , Zhang Lei , James Morse , Alexandru Elisei , Andre Przywara , kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v5 0/8] arm64/sve: Clean up KVM integration and optimise syscalls In-Reply-To: <20221115094640.112848-1-broonie@kernel.org> References: <20221115094640.112848-1-broonie@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: broonie@kernel.org, catalin.marinas@arm.com, will@kernel.org, zhang.lei@jp.fujitsu.com, james.morse@arm.com, alexandru.elisei@arm.com, andre.przywara@arm.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221128_004706_746666_08AEE44F X-CRM114-Status: GOOD ( 15.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 15 Nov 2022 09:46:32 +0000, Mark Brown wrote: > > This patch series attempts to clarify the tracking of which set of > floating point registers we save on systems supporting SVE, particularly > with reference to KVM, and then uses the results of this clarification > to improve the performance of simple syscalls where we return directly > to userspace in cases where userspace is using SVE. Reviewed-by: Marc Zyngier I expect this to go via the arm64 tree, please shout if that's not the case. M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel